The team found the black cottonwood-balsam poplar stable hybrid lineage after analyzing the genetic makeup of 546 poplar tree ...

A researcher carries a large cutting of poplar in the Pacific Northwest that later was genetically analyzed in the study. Most black cottonwood tree populations exist in wet coastal regions.

White poplar (Populus alba), also known as silver poplar, is a large variety of poplar tree that grows up to ... Also known as black cottonwood and Lombardy poplar, black poplar (Populus nigra ...

A post shared by Joshua Tree National Park (@joshuatreenps) The south entrance on Cottonwood is still open, but all the facilities are closed. All the other areas of the park remain open.

Cottonwood Spring Oasis ... Climbers flock to Joshua Tree from around the world to tackle the literally thousands of routes open to them. There are challenges for all ability levels, with more ...

The throngs of birds circle ever closer to the ground and then, one by one, funnel into the hollow center of the iconic Davie Poplar tree. The display is almost threatening, a tornado of birds.

Joshua Tree National Park announced in a Facebook post that the park is temporarily closing the Cottonwood Visitor Center, campground, restrooms and parking area due to “increased bee activity.” ...

Trees first appeared around 400 million years ago. They survived the mass-extinction event that wiped out the dinosaurs some 66 million years ago and lived through several glacial periods ...

Researchers at the University of Maryland genetically modified poplar trees to produce high-performance, structural wood without the use of chemicals or energy intensive processing. Made from ...

Many new trees do just fine on their own. In fact, the movement they experience from normal wind and weather helps trees develop strong root systems and solid trunk girth. But new trees in open ...

Study Reveals Urban Trees Suffer More from Heat Waves and Drought Than Their Rural Counterparts Aug. 13, 2024 — A recent study details how trees in New York City and Boston are more negatively ...